key fob baffeld
 

my spare key opens and closes the car using the fob buttons but even though the key turns it will not start the car i have replaced the batteries with new ones which i have checked so i know that they are good ones but it still will not start the car any ideas anyone

Stiil got the transponder in the key?:cool: http://i.imgur.com/XVYZD9jl.jpg

Beat me to it! Your transponder - the item circled in red is either missing or loose in the key back.

yes it still has the transponder fitted will check if it lose i have spare keys will another transponder work

Sounds like a job for Phil T4 mate
Possibly your key isn't synced to the car
Regards
Chris

I'm prepared to wager the transponder doesn't actually belong to the car, or it has been spiked during a cranking session when the car battery has been discharged.

It isn't a problem however simply contact any of the members offering the replacement key service and have a replacement transponder programmed to the car's immobiliser ;)

Brian :D

I'm prepared to wager the transponder doesn't actually belong to the car, or it has been spiked during a cranking session when the car battery has been discharged.

It isn't a problem however simply contact any of the members offering the replacement key service and have a replacement transponder programmed to the car's immobiliser ;)

Brian :D[/QUOTE]

Been there and done that haven't we Brian ;)

thanks for the replies can i have the transponder thats already in the key reprogramed

No is the short answer, the original PCF7930 transponder is a once only program device.

The remote boards are of course recyclable, but as you say it is programmed to the cars BCU and locks and locks the car remotely so not an issue.

Have a look HERE and compare that to the alternative of paying BMW £220 for a replacement key, where all you need in reality is a new transponder ;)

Brian :D